Question

Bayangan yang terbentuk...?

Answer 1

Maya, terbalik di perbesar

Answer 2

1/f = 1/So + 1/Si
1/12 = 1/20 + 1/Si
-1/Si = 1/20 - 1/12
        = 3/60 - 5/60
        = - 2/60
        = - 1/30
   Si = 30 cm di depan cermin (c)